Mounted Orthodox Icons of Orthodox Saints (546)
Commemorated on January 28 / February 10
According to Bishop Nikolai Velimirovch in The Prologue from Ohrid:
Isaac was born in Nineveh and in his youth lived an ascetical life in the Monastery of Mar [Saint] Matthew in the proximity of Nineveh. When Isaac became known because of the sanctity of his life and of his many miracles, he was elected bishop of Nineveh and was forced to accept that rank. But, after only five months, he left the bishopric and secretly withdrew into the wilderness to the Monastery of Rabban Shabur. He complied many works of which about a hundred homilies on the spiritual life and asceticism, written primarily from his personal experience, have come down to us today. He was unequaled as a psychologist and as a director in the spiritual life. Even such saints as was St. Simeon [the New Stylite] of the Wonderful Mountain near Antioch sought counsel from him. Isaac died in extreme old age toward the end of the seventh century.